Is the frictional force always opposed to the motion?
A Salazar; A Sanchez-Lavega; M A Arriandiaga; A Salazar; Basque Country Univ., Bilbao, Spain; A Sanchez-Lavega; Basque Country Univ., Bilbao, Spain; M A Arriandiaga; Basque Country Univ., Bilbao, Spain
Журнал:
Physics Education
Дата:
1990-03-01
Аннотация:
A common idea is that frictional force is always opposed to motion. With the aid of two examples the authors show how, in some cases, the frictional force acts in the same direction as the centre of mass velocity of the body accelerating it.
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